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Galileo Thermometer 34cm This Galileo thermometer 34cm is a truly beautiful thermometer with multi coloured temperature reading balls.Contains 5 internal temperature globes with temperature reading tags( picture shows 5) Tags are gold coloured and read temperatures between 18-26C.History of the Galileo The physicist Galileo Galilei (1564-1642) discovered that density of liquid changes according to temperature. This principle is used within the Galileo Thermometer, Depending on the temperature, the glass bulbs in the thermometer either rise or fall. The actual temperature is shown by the lowest of the upper floating glass coloured bulbs.These Traditional Galileo's are top quality and not to be confused with cheaper imitations. Made from blown glass in Germany they really do make a perfect gift that will be admired- certainly not another dust collector.Please note that this item is only available for mainland UK delivery only
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